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31232443201 = 337155959447
BaseRepresentation
bin11101000101100110…
…010100001101000001
32222121122100111121121
4131011212110031001
51002431001140301
622203055352241
72153653246501
oct350546241501
988548314547
1031232443201
1112277999933
126077822681
132c3980862b
141723dc1a01
15c2be223a1
hex745994341

31232443201 has 8 divisors (see below), whose sum is σ = 31345741440. Its totient is φ = 31119267648.

The previous prime is 31232443159. The next prime is 31232443261. The reversal of 31232443201 is 10234423213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31232443201 - 211 = 31232441153 is a prime.

It is a super-2 number, since 2×312324432012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31232443261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495660 + ... + 555106.

It is an arithmetic number, because the mean of its divisors is an integer number (3918217680).

Almost surely, 231232443201 is an apocalyptic number.

It is an amenable number.

31232443201 is a deficient number, since it is larger than the sum of its proper divisors (113298239).

31232443201 is a wasteful number, since it uses less digits than its factorization.

31232443201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61343.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31232443201 its reverse (10234423213), we get a palindrome (41466866414).

The spelling of 31232443201 in words is "thirty-one billion, two hundred thirty-two million, four hundred forty-three thousand, two hundred one".

Divisors: 1 337 1559 59447 525383 20033639 92677873 31232443201